using Microsoft.Extensions.Logging;
using Service.Transaction;

namespace WebApi.Test.Transaction;

public class TransactionPeriodicServiceTest : BaseTest
{
    private readonly ITransactionPeriodicRepository _periodicRepository = Substitute.For<ITransactionPeriodicRepository>();
    private readonly ITransactionRecordRepository _transactionRepository = Substitute.For<ITransactionRecordRepository>();
    private readonly IMessageRecordRepository _messageRepository = Substitute.For<IMessageRecordRepository>();
    private readonly ILogger<TransactionPeriodicService> _logger = Substitute.For<ILogger<TransactionPeriodicService>>();
    private readonly ITransactionPeriodicService _service;

    public TransactionPeriodicServiceTest()
    {
        _service = new TransactionPeriodicService(
            _periodicRepository,
            _transactionRepository,
            _messageRepository,
            _logger
        );
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_每日账单()
    {
        // Arrange
        var today = new DateTime(2024, 1, 15, 10, 0, 0);
        var periodicBill = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Daily,
            Amount = 100m,
            Type = TransactionType.Expense,
            Classify = "餐饮",
            Reason = "每日餐费",
            IsEnabled = true,
            LastExecuteTime = new DateTime(2024, 1, 14, 10, 0, 0),
            NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(new[] { periodicBill });
        _transactionRepository.AddAsync(Arg.Any<TransactionRecord>()).Returns(Task.FromResult(true));
        _messageRepository.AddAsync(Arg.Any<MessageRecord>()).Returns(Task.CompletedTask);
        _periodicRepository.UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>())
            .Returns(Task.CompletedTask);

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        await _transactionRepository.Received(1).AddAsync(Arg.Is<TransactionRecord>(t =>
            t.Amount == -100m &&
            t.Type == TransactionType.Expense &&
            t.Classify == "餐饮" &&
            t.Reason == "每日餐费" &&
            t.Card == "周期性账单" &&
            t.ImportFrom == "周期性账单自动生成"
        ));

        await _messageRepository.Received(1).AddAsync(Arg.Is<MessageRecord>(m =>
            m.Title == "周期性账单提醒" &&
            m.Content.Contains("支出") &&
            m.Content.Contains("100.00") &&
            m.Content.Contains("每日餐费") &&
            m.IsRead == false
        ));

        await _periodicRepository.Received(1).UpdateExecuteTimeAsync(
            Arg.Is(1L),
            Arg.Is<DateTime>(dt => dt.Date == today.Date),
            Arg.Is<DateTime?>(dt => dt.HasValue && dt.Value.Date == today.Date.AddDays(1))
        );
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_每周账单()
    {
        // Arrange
        var periodicBill = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Weekly,
            PeriodicConfig = "1,3,5", // 周一、三、五
            Amount = 200m,
            Type = TransactionType.Expense,
            Classify = "交通",
            Reason = "每周通勤费",
            IsEnabled = true,
            LastExecuteTime = new DateTime(2024, 1, 10, 10, 0, 0),
            NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(new[] { periodicBill });
        _transactionRepository.AddAsync(Arg.Any<TransactionRecord>()).Returns(Task.FromResult(true));
        _messageRepository.AddAsync(Arg.Any<MessageRecord>()).Returns(Task.CompletedTask);
        _periodicRepository.UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>())
            .Returns(Task.CompletedTask);

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        await _transactionRepository.Received(1).AddAsync(Arg.Is<TransactionRecord>(t =>
            t.Amount == -200m &&
            t.Type == TransactionType.Expense &&
            t.Classify == "交通" &&
            t.Reason == "每周通勤费"
        ));
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_每月账单()
    {
        // Arrange
        var periodicBill = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Monthly,
            PeriodicConfig = "1,15", // 每月1号和15号
            Amount = 5000m,
            Type = TransactionType.Income,
            Classify = "工资",
            Reason = "每月工资",
            IsEnabled = true,
            LastExecuteTime = new DateTime(2024, 1, 1, 10, 0, 0),
            NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(new[] { periodicBill });
        _transactionRepository.AddAsync(Arg.Any<TransactionRecord>()).Returns(Task.FromResult(true));
        _messageRepository.AddAsync(Arg.Any<MessageRecord>()).Returns(Task.CompletedTask);
        _periodicRepository.UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>())
            .Returns(Task.CompletedTask);

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        await _transactionRepository.Received(1).AddAsync(Arg.Is<TransactionRecord>(t =>
            t.Amount == 5000m &&
            t.Type == TransactionType.Income &&
            t.Classify == "工资" &&
            t.Reason == "每月工资"
        ));

        await _messageRepository.Received(1).AddAsync(Arg.Is<MessageRecord>(m =>
            m.Content.Contains("收入") &&
            m.Content.Contains("5000.00") &&
            m.Content.Contains("每月工资")
        ));
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_未达到执行时间()
    {
        // Arrange
        var periodicBill = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Weekly,
            PeriodicConfig = "1,3,5", // 只在周一(1)、三(3)、五(5)执行
            Amount = 200m,
            Type = TransactionType.Expense,
            Classify = "交通",
            Reason = "每周通勤费",
            IsEnabled = true,
            LastExecuteTime = new DateTime(2024, 1, 10, 10, 0, 0),
            NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(new[] { periodicBill });

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        await _transactionRepository.Received(0).AddAsync(Arg.Any<TransactionRecord>());
        await _messageRepository.Received(0).AddAsync(Arg.Any<MessageRecord>());
        await _periodicRepository.Received(0).UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>());
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_今天已执行过()
    {
        // Arrange
        var periodicBill = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Daily,
            Amount = 100m,
            Type = TransactionType.Expense,
            Classify = "餐饮",
            Reason = "每日餐费",
            IsEnabled = true,
            LastExecuteTime = new DateTime(2024, 1, 15, 8, 0, 0), // 今天已经执行过
            NextExecuteTime = new DateTime(2024, 1, 16, 10, 0, 0)
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(new[] { periodicBill });

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        // 由于 LastExecuteTime 日期是今天，所以不会再次执行
        await _transactionRepository.Received(0).AddAsync(Arg.Any<TransactionRecord>());
        await _messageRepository.Received(0).AddAsync(Arg.Any<MessageRecord>());
        await _periodicRepository.Received(0).UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>());
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_从未执行过()
    {
        // Arrange
        var periodicBill = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Weekly,
            PeriodicConfig = "1,3,5",
            Amount = 200m,
            Type = TransactionType.Expense,
            Classify = "交通",
            Reason = "每周通勤费",
            IsEnabled = true,
            LastExecuteTime = null, // 从未执行过
            NextExecuteTime = null
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(new[] { periodicBill });
        _transactionRepository.AddAsync(Arg.Any<TransactionRecord>()).Returns(Task.FromResult(true));
        _messageRepository.AddAsync(Arg.Any<MessageRecord>()).Returns(Task.CompletedTask);
        _periodicRepository.UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>())
            .Returns(Task.CompletedTask);

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        await _transactionRepository.Received(1).AddAsync(Arg.Any<TransactionRecord>());
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_添加交易记录失败()
    {
        // Arrange
        var periodicBill = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Daily,
            Amount = 100m,
            Type = TransactionType.Expense,
            Classify = "餐饮",
            Reason = "每日餐费",
            IsEnabled = true,
            LastExecuteTime = new DateTime(2024, 1, 14, 10, 0, 0),
            NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(new[] { periodicBill });
        _transactionRepository.AddAsync(Arg.Any<TransactionRecord>()).Returns(false); // 添加失败

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        await _messageRepository.Received(0).AddAsync(Arg.Any<MessageRecord>());
        await _periodicRepository.Received(0).UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>());
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_多条账单()
    {
        // Arrange
        var periodicBills = new[]
        {
            new TransactionPeriodic
            {
                Id = 1,
                PeriodicType = PeriodicType.Daily,
                Amount = 100m,
                Type = TransactionType.Expense,
                Classify = "餐饮",
                Reason = "每日餐费",
                IsEnabled = true,
                LastExecuteTime = new DateTime(2024, 1, 14, 10, 0, 0),
                NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
            },
            new TransactionPeriodic
            {
                Id = 2,
                PeriodicType = PeriodicType.Daily,
                Amount = 200m,
                Type = TransactionType.Expense,
                Classify = "交通",
                Reason = "每日交通",
                IsEnabled = true,
                LastExecuteTime = new DateTime(2024, 1, 14, 10, 0, 0),
                NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
            }
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(periodicBills);
        _transactionRepository.AddAsync(Arg.Any<TransactionRecord>()).Returns(Task.FromResult(true));
        _messageRepository.AddAsync(Arg.Any<MessageRecord>()).Returns(Task.CompletedTask);
        _periodicRepository.UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>())
            .Returns(Task.CompletedTask);

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        await _transactionRepository.Received(2).AddAsync(Arg.Any<TransactionRecord>());
        await _messageRepository.Received(2).AddAsync(Arg.Any<MessageRecord>());
        await _periodicRepository.Received(2).UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>());
    }

    [Fact]
    public void CalculateNextExecuteTime_每日()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Daily,
            PeriodicConfig = ""
        };
        var baseTime = new DateTime(2024, 1, 15, 10, 0, 0);

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2024, 1, 16, 0, 0, 0));
    }

    [Fact]
    public void CalculateNextExecuteTime_每周_本周内()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Weekly,
            PeriodicConfig = "1,3,5" // 周一、三、五
        };
        var baseTime = new DateTime(2024, 1, 15, 10, 0, 0); // 周一

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2024, 1, 17, 0, 0, 0)); // 下周三
    }

    [Fact]
    public void CalculateNextExecuteTime_每周_跨周()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Weekly,
            PeriodicConfig = "1,3,5" // 周一、三、五
        };
        var baseTime = new DateTime(2024, 1, 19, 10, 0, 0); // 周五

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2024, 1, 22, 0, 0, 0)); // 下周一
    }

    [Fact]
    public void CalculateNextExecuteTime_每月_本月内()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Monthly,
            PeriodicConfig = "1,15" // 每月1号和15号
        };
        var baseTime = new DateTime(2024, 1, 10, 10, 0, 0);

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2024, 1, 15, 0, 0, 0));
    }

    [Fact]
    public void CalculateNextExecuteTime_每月_跨月()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Monthly,
            PeriodicConfig = "1,15" // 每月1号和15号
        };
        var baseTime = new DateTime(2024, 1, 16, 10, 0, 0);

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2024, 2, 1, 0, 0, 0));
    }

    [Fact]
    public void CalculateNextExecuteTime_每月_月末()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Monthly,
            PeriodicConfig = "30,31" // 每月30号和31号
        };
        var baseTime = new DateTime(2024, 1, 15, 10, 0, 0); // 1月只有31天

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2024, 1, 30, 0, 0, 0));
    }

    [Fact]
    public void CalculateNextExecuteTime_每月_小月()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Monthly,
            PeriodicConfig = "30,31" // 每月30号和31号
        };
        var baseTime = new DateTime(2024, 4, 25, 10, 0, 0); // 4月只有30天

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2024, 4, 30, 0, 0, 0)); // 30号，31号不存在
    }

    [Fact]
    public void CalculateNextExecuteTime_每季度()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Quarterly,
            PeriodicConfig = "15" // 每季度第15天
        };
        var baseTime = new DateTime(2024, 1, 15, 10, 0, 0);

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2024, 4, 15, 0, 0, 0)); // 下季度
    }

    [Fact]
    public void CalculateNextExecuteTime_每年()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = PeriodicType.Yearly,
            PeriodicConfig = "100" // 每年第100天
        };
        var baseTime = new DateTime(2024, 4, 10, 10, 0, 0); // 第100天是4月9日

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().Be(new DateTime(2025, 4, 9, 0, 0, 0)); // 下一年
    }

    [Fact]
    public void CalculateNextExecuteTime_未知周期类型()
    {
        // Arrange
        var periodic = new TransactionPeriodic
        {
            Id = 1,
            PeriodicType = (PeriodicType)99, // 未知类型
            PeriodicConfig = ""
        };
        var baseTime = new DateTime(2024, 1, 15, 10, 0, 0);

        // Act
        var result = _service.CalculateNextExecuteTime(periodic, baseTime);

        // Assert
        result.Should().BeNull();
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_处理异常不中断()
    {
        // Arrange
        var periodicBills = new[]
        {
            new TransactionPeriodic
            {
                Id = 1,
                PeriodicType = PeriodicType.Daily,
                Amount = 100m,
                Type = TransactionType.Expense,
                Classify = "餐饮",
                Reason = "每日餐费",
                IsEnabled = true,
                LastExecuteTime = new DateTime(2024, 1, 14, 10, 0, 0),
                NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
            },
            new TransactionPeriodic
            {
                Id = 2,
                PeriodicType = PeriodicType.Daily,
                Amount = 200m,
                Type = TransactionType.Expense,
                Classify = "交通",
                Reason = "每日交通",
                IsEnabled = true,
                LastExecuteTime = new DateTime(2024, 1, 14, 10, 0, 0),
                NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
            }
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(periodicBills);
        _transactionRepository.AddAsync(Arg.Any<TransactionRecord>()).Returns(Task.FromResult(true));
        _messageRepository.AddAsync(Arg.Any<MessageRecord>()).Returns(Task.CompletedTask);
        _periodicRepository.UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>())
            .Returns(args =>
            {
                var id = (long)args[0];
                if (id == 1)
                {
                    throw new Exception("更新失败");
                }
                return Task.CompletedTask;
            });

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        // 第二条记录应该成功处理
        await _transactionRepository.Received(2).AddAsync(Arg.Any<TransactionRecord>());
    }

    [Fact]
    public async Task ExecutePeriodicBillsAsync_处理所有账单()
    {
        // Arrange
        var periodicBills = new[]
        {
            new TransactionPeriodic
            {
                Id = 1,
                PeriodicType = PeriodicType.Daily,
                Amount = 100m,
                Type = TransactionType.Expense,
                Classify = "餐饮",
                Reason = "每日餐费",
                IsEnabled = false, // 禁用
                LastExecuteTime = new DateTime(2024, 1, 14, 10, 0, 0),
                NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
            },
            new TransactionPeriodic
            {
                Id = 2,
                PeriodicType = PeriodicType.Daily,
                Amount = 200m,
                Type = TransactionType.Expense,
                Classify = "交通",
                Reason = "每日交通",
                IsEnabled = true,
                LastExecuteTime = new DateTime(2024, 1, 14, 10, 0, 0),
                NextExecuteTime = new DateTime(2024, 1, 15, 10, 0, 0)
            }
        };

        _periodicRepository.GetPendingPeriodicBillsAsync().Returns(periodicBills);
        _transactionRepository.AddAsync(Arg.Any<TransactionRecord>()).Returns(Task.FromResult(true));
        _messageRepository.AddAsync(Arg.Any<MessageRecord>()).Returns(Task.CompletedTask);
        _periodicRepository.UpdateExecuteTimeAsync(Arg.Any<long>(), Arg.Any<DateTime>(), Arg.Any<DateTime>())
            .Returns(Task.CompletedTask);

        // Act
        await _service.ExecutePeriodicBillsAsync();

        // Assert
        // 只有启用的账单会被处理
        await _transactionRepository.Received(1).AddAsync(Arg.Is<TransactionRecord>(t => t.Reason == "每日交通"));
        await _transactionRepository.Received(0).AddAsync(Arg.Is<TransactionRecord>(t => t.Reason == "每日餐费"));
    }
}